I have a journal bearing on my car, but I am going to take the extra step to install a tee fitting and gauge at the cartridge just for piece of mind. Plus my feed line comes directly from my oil filter housing so it’ll show engine psi as well
I put an rb25det turbo which looks exactly the same with the one you mentioned doesnt require a restrictor, labeled nissan 45v4. I had some oil burning issues and oil in my intake piping cause its a low mount turbo so i installed an external scavenge pump and a small container for steady feed to the pump. I got the turbo for service just to make sure and the guy said its an old turbo that doesnt have parts availability but the turbo is good. Anyway im planning on using a 1mm restrictor because i cannot find an explanation to why oil spills out both sides of the turbo other than the feed being too much. Whats your opinion on that?
I just installed the turbo smart oil press regulator , and it starts off reading 60psi and then when warm it's on 40psi but as I rev it goes up to 60psi so how is that happening if it's a 40psi regulator?
I keep getting very conflicting opinions on whether to run a restrictor on a greddy t67-25g journal bearing turbo. The obvious answer is no, but some people have told me when the rpm are high it will get too much oil without a restrictor. It is currently getting rebuilt due to failure caused by suspected oil starvation, as it had a 2.5mm restrictor when i bought it and i drove it for 7 months before it failed.
I threw away my oil restrictor thinking it was an extra part … I was coming off a journal turbo and thought I could connect the banjo bolts the same …. Long story short my car was blowing clouds of smoke at every stop light 🤦🏻♂️🤣🤣🥲🥲🥲
I'm no expert, but there's two ways to look at it I guess, on the one hand it is an extra safety net to ensure your oil into your turbo is 'clean', on the other hand, most every engine already has an oil filter. I'm sure there are pros and cons to either approach... pros of ensuring oil quality for your turbo or cons of extra complexity of additional fittings, plus the risk of it clogging and starving the turbo. I'm on the side of the engine already having an oil filter so I don't need to add complexity.
Thanks @@Bbeavis , Im in the process of fitting up a new BB turbo to my Sr20. wasn't even thinking about it until I kept seeing them pop up mainly on Barra's and some other UA-camrs cars. wasn't sure if it was just another up-sale item. cheers
A diesel truck turbo on an Audi? Interesting. I can't help with your question, maybe try contact holset themselves for advice on ideal oil feed pressure into the turbo.
How did you go about measuring the oil pressure at the feed line? Did you connect the sensor directly to the feed or did you connect it with a T split and ran the other end into the turbo? I'd assume you connected it directly to the feed without running it through the turbo.
Hi, help me please i have this model turbo Garrett GTW3884R - 67.00 mm A/R 0.70 T04S Ball Bearing Turbocharger and my seller dont know what restrictor size i need😥
If your running a ball bearing Turbo please dont bother with damaging oil restrjctors! Go straight for the TurboSmart OPR. For under a $100 dollars it protects my $1500 Turbo!.....period
I really do like the Turbo specific oil pressure regulators that are on the market now (Turbosmart have this patented I think), however I wouldn't personally call a traditional oil restrictor 'damaging', they have their place.
FOR A GARRETT BALL BEARING TURBO An oil restrictor is recommended for optimal performance with ball bearing turbochargers. Oil pressure of 40 - 45 psi at maximum engine speed is recommended to prevent damage to the turbocharger’s internals. In order to achieve this pressure, a restrictor with a 0.040” orifice will normally suffice, but you should always verify the oil pressure entering the turbo after the restrictor to ensure the components function properly. Recommended oil feed is -3AN or -4AN line or hose/tubing with a similar ID. As always, use an oil filter that meets or exceeds the OEM specifications.
@@Choloracingparts Journal-bearings function similarly to rod or crank bearings in an engine - oil pressure is required to keep components separated. An oil restrictor is generally not needed except for oil-pressure-induced leakage. The recommended oil feed for journal bearing turbochargers is -4AN or hose/tubing with an ID of approximately 0.25”.
I have recently had my T3 Garret turbo off my RB25 rebuilt with steel internals and a larger compressor wheel. I’ve got braided oil feed but stock oil drain etc. My oil pressure is lower than before in my engine. Do you think it needs a 2.5m restrictor to help with pressure
I cannot say for sure Coxyz, as mentioned throughout the video, this is just general advice based on documentation provided by the manufacturer, please seek advice from a professional or your turbo manufacturers documentation for the right needs for your configuration.
Hi Beavis, i run same gtx28 as yours in my swaped 1.8 BP4W NA, could you please tell me wich restrictor size do you use for Gtx28. Thanks, Best regards.
Thanks for watching folks! Interested in more details on my MX-5 racecar? See here: ua-cam.com/play/PLongVur9FFhpXiA_xmcTCDQ7xSQya_PQx.html
Can hear the 3d printer going in the background 😆
The sound of awesomeness in the build!
Ohh you must have some good ears! Nice spotting!
I have a journal bearing on my car, but I am going to take the extra step to install a tee fitting and gauge at the cartridge just for piece of mind. Plus my feed line comes directly from my oil filter housing so it’ll show engine psi as well
Nice idea!
Simple. Perfect. Clear.
Thankyou
Glad it helped!
Very helpful video . I'm building a turbo rx-8 soon and am going with the gt3860rs. Goal is about 300 to 350 wheel horses.
Nice, I wish you good luck. I owned an RX-8 for a short period, it was a lovely car.
Good info, thanks!
Happy to help!
good info bud.
Thanks 👍
I put an rb25det turbo which looks exactly the same with the one you mentioned doesnt require a restrictor, labeled nissan 45v4. I had some oil burning issues and oil in my intake piping cause its a low mount turbo so i installed an external scavenge pump and a small container for steady feed to the pump. I got the turbo for service just to make sure and the guy said its an old turbo that doesnt have parts availability but the turbo is good. Anyway im planning on using a 1mm restrictor because i cannot find an explanation to why oil spills out both sides of the turbo other than the feed being too much. Whats your opinion on that?
If you are unsure about the turbo or what restictor you need, perhaps an inline oil pressure regulator would be appropriate?
Are the restrictors one way or can oil feed through both ends?
All the basic ones I've come across have no form of flow directional control.
Yeah it’s just a smaller hole diameter aka a restriction
I just installed the turbo smart oil press regulator , and it starts off reading 60psi and then when warm it's on 40psi but as I rev it goes up to 60psi so how is that happening if it's a 40psi regulator?
Best to check with turbosmart.
I keep getting very conflicting opinions on whether to run a restrictor on a greddy t67-25g journal bearing turbo.
The obvious answer is no, but some people have told me when the rpm are high it will get too much oil without a restrictor.
It is currently getting rebuilt due to failure caused by suspected oil starvation, as it had a 2.5mm restrictor when i bought it and i drove it for 7 months before it failed.
Sorry to hear about the failure, you may have to check with Greddy if they have advice on the ideal oil pressure.
I threw away my oil restrictor thinking it was an extra part … I was coming off a journal turbo and thought I could connect the banjo bolts the same …. Long story short my car was blowing clouds of smoke at every stop light 🤦🏻♂️🤣🤣🥲🥲🥲
Oww oops!
Did you blow the turbo seals?
Click, thanks for your reply this is excatly what's happening to my setup,and it's because I replaced the line when the original got cut .
Hi Beavis motorsport, what are your thoughts on a turbo feed line filter
I'm no expert, but there's two ways to look at it I guess, on the one hand it is an extra safety net to ensure your oil into your turbo is 'clean', on the other hand, most every engine already has an oil filter.
I'm sure there are pros and cons to either approach... pros of ensuring oil quality for your turbo or cons of extra complexity of additional fittings, plus the risk of it clogging and starving the turbo.
I'm on the side of the engine already having an oil filter so I don't need to add complexity.
Thanks @@Bbeavis , Im in the process of fitting up a new BB turbo to my Sr20. wasn't even thinking about it until I kept seeing them pop up mainly on Barra's and some other UA-camrs cars. wasn't sure if it was just another up-sale item. cheers
Wow, Very Cool Thanks
No problem.
What the right oil fitting size I got a 7/16 to 4AN and the 7/16 doesn’t fit
It will depend on your turbocharger, 7/16-24 inverted flare is the common size for typical consumer Garrett turbos.
Today I removed my banjo bolt and ran a straight feed to the turbo is this bad for the turbo?
Whether you use a banjo fitting, or straight fitting, it should not matter.
Do you need to run a washer for the oil restrictor ?
If it's a fitting threaded into the turbo, it'll likely need a crush washer.
Thanks!
What brand your turbo lines are? looks good quality ones 👌
They're teflon line braided items with speedflow fittings. Made to length. Not exactly cheap unfortunately!
@@Bbeavis Thanks :) imagine at local Store right?
Yes sir.
Hi i have holset hx27w on 1.8t 20v what oil restrictor should i use is a 4AN fitting fine?
A diesel truck turbo on an Audi? Interesting. I can't help with your question, maybe try contact holset themselves for advice on ideal oil feed pressure into the turbo.
Excellent and simple! Thanks a lot!
No worries Magnus!
How did you go about measuring the oil pressure at the feed line? Did you connect the sensor directly to the feed or did you connect it with a T split and ran the other end into the turbo? I'd assume you connected it directly to the feed without running it through the turbo.
Most people will T into the oil feed line.
Cool vid...thanks
Thanks for watching!
Does it make a difference if the restriction is on the turbo or engine side?
No, as long as the pressure fed into the turbo is within spec.
Hi, help me please i have this model turbo Garrett GTW3884R - 67.00 mm A/R 0.70 T04S Ball Bearing Turbocharger and my seller dont know what restrictor size i need😥
Hey Jaime, this is just general advice, I suggest you speak to a mechanic/performance tech/turbo expert in your area.
If your running a ball bearing Turbo please dont bother with damaging oil restrjctors! Go straight for the TurboSmart OPR. For under a $100 dollars it protects my $1500 Turbo!.....period
I really do like the Turbo specific oil pressure regulators that are on the market now (Turbosmart have this patented I think), however I wouldn't personally call a traditional oil restrictor 'damaging', they have their place.
I have a turbo gt2860 on bushings which restrictor size is the right one
FOR A GARRETT BALL BEARING TURBO
An oil restrictor is recommended for optimal performance with ball bearing turbochargers. Oil pressure of 40 - 45 psi at maximum engine speed is recommended to prevent damage to the turbocharger’s internals. In order to achieve this pressure, a restrictor with a 0.040” orifice will normally suffice, but you should always verify the oil pressure entering the turbo after the restrictor to ensure the components function properly. Recommended oil feed is -3AN or -4AN line or hose/tubing with a similar ID. As always, use an oil filter that meets or exceeds the OEM specifications.
I have a journal turbo
@@Choloracingparts
Journal-bearings function similarly to rod or crank bearings in an engine - oil pressure is required to keep components separated. An oil restrictor is generally not needed except for oil-pressure-induced leakage. The recommended oil feed for journal bearing turbochargers is -4AN or hose/tubing with an ID of approximately 0.25”.
What Garrett turbo is that one? I’ve been looking for a 6bolt one for forever
GTX2860R Gen2
i have a 2863 t3 6 bolt turbo with ball bearing core and gtx front wheel . Custom made by GCG turbos in australia
Hi, Your turbo has restrictor inside?. salso I put a restrictor on the line?
You likely need to check with your turbo manufacturer for your specific vehicle.
What issues does it cause if you have to much oil pressure to your turbo? Your video helped alot
As I understand, you can experience excess oil blowing past the seals and out the exhaust.
@@Bbeavis you'll also experience that if you don't properly angle the CHRA. It has to be 15 degrees on the angle for proper oil feed and return
@@OSPWerks That is also a good suggestion, thanks.
I have recently had my T3 Garret turbo off my RB25 rebuilt with steel internals and a larger compressor wheel. I’ve got braided oil feed but stock oil drain etc. My oil pressure is lower than before in my engine. Do you think it needs a 2.5m restrictor to help with pressure
I cannot say for sure Coxyz, as mentioned throughout the video, this is just general advice based on documentation provided by the manufacturer, please seek advice from a professional or your turbo manufacturers documentation for the right needs for your configuration.
Hey Beavis do you know if it matters where u install a restrictor? Does it need to be at the turbo or can it be before the line
Every turbocharger is different. Best check your turbo manufacturers documentation for the right needs for your configuration.
why new turbo smoking to the intake?
Best chat with your mechanic mate.
@@Bbeavis lmao you're absolutely no help to anyone in your comments.
@@silhouette999 I cannot magically answer every specific question without seeing the car and all the components in front of me.
@@Bbeavis i understand that but you disregard them so quickly lol.
Hi Beavis, i run same gtx28 as yours in my swaped 1.8 BP4W NA, could you please tell me wich restrictor size do you use for Gtx28.
Thanks,
Best regards.
I ran a .035" or .9mm restrictor
i hear a 3d printer in background lol
I need to multi task to get stuff done!